The article provides only data on the growth in the number of Bitcoins on the three leading cryptocurrency exchanges and at the same time records a decrease in the number of Ethereum on them. However, there is no comment on why this happens.
Typically, if a lot of cryptocurrency is transferred to exchanges, it means its holders are preparing to sell it. And vice versa, if cryptocurrency goes from exchanges to wallets, then their holders have no intention of getting rid of them in the near future. It is possible that if spot ETFs are not approved on January 10, then it is assumed that after that Bitcoin may fall in price for some time. Far-sighted holders expect to sell them in this case and then buy them after the fall. Well, ethereum will increase in price this year in any case.